Double-acting force-pump



(No Model.)

C. CLEMONS 8v J. C. MYERS.

DOUBLE AGTING PoRGB PUMP. l

Patented'Oct. 13

mL nomme ruins co., nora-wma., msnmnwn, n. c,

UNITED STATES PATENT OFFICE.

CHARLES CLEMONS AND JOSEPH C. MYERS, OF CLINTON, ILLINOIS.

DOUBLE-ACTING FORCE-PUMP.

SPECIFICATION forming part of Letters Patent No. 461,236, dated October 13, 1891.

Application tiled July 2, 1891. Serial No. 398,300. (No model.) l

To all whom, it may concern:

Beit known that we, CHARLES CLEMONS and JOSEPH C. MYERS, citizens of the United States, residing at Clinton,- in the county of De IVitt and State of Illinois, have invented certain new and useful Improvements inv Double-Actin g Force-Pumps; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to double-acting forcepumps; and it consists of certain novel parts and combinations of parts, herein described and claimed.

Reference is had to the accompanying drawings, wherein the same parts are indicated by thersame letters.

Figure l represents a central sectional elevation of our improved pump. Fig. 2 represents a side View of the pump, looking to the right, as shown in Fig. l. Fig. 3 represents a perspective View of the central double-acting valve. Fig. 4 represents a perspective View of thegvalves in the double piston. Fig. 5 represents a cross-section of one ot' these valves. Fig. 6 represents the leather or rubber pieces used in said valves. Fig. 7 represents a plan View of the rubber or leather pieces in the valves D5 and D6.

Arepresents the reservoir of water, in which the pump-barrel should be wholly submerged.

B and B are the two sections of pipe, which are screwed into the sleeve C. These three cylindrical sections B, B', and C constitute the barrel of the pump.

` In the enlarged chamber C the valve Efis situated. This valve consists of a central disk e, of rubber or leather, held between two metal plates eZ by means of the nut e4. This disk is larger than the two metal plates, in order to give a leather bearing for the valve on the inner ends of the pipes B and B. The guide-rods e3 are attached to one of these plates and pass through holes in the central disk and in the other plate. By having several of these guide-rods, preferably three, the valve E is well steadied and kept from tilting to one side. `The discharge-pipe F opens into the center of the chamber C. In the sections B and B are the pistons D and D', connect-ed together by means of the cross-heads D2 and D3 and yoke-rods D4. The upper cross-head D3 is connected at the outer ends tothe pumphandle H, pivoted at h to the discharge-pi pe F. These pistons are open at the outer ends, and have one or more slots d for the entrance of water from the sides as well as from the ends. At the inner ends of the said piston the valves D5 and DG are attached. These valves consist of two semicireular metal plates` hinged together and held by the pin cl2, which is secured across the end of the piston. Outside of these hinged plates the rubber or leather pieces d3, shaped as shown in Fig. 6, are secured between the said hinged plates and the outer plates d5 by means of the bolts d4. The two pieces of rubber or leather d3 should preferably be cut out at the center d6 to diminish the friction. The said leather or rubber should lap over the outer plates enough to give a leather bearing to the valve on the valve-seat.

The operation of our device is as fol-lows: On the downstroke the valve D6 closes, the valve F. falls to its lower seat, as shown in Fig. l, and the water is forced from the upper side of the chamber C through the de livery-pipe F, while at the same time the valve D5 is open and the pipeBis filling with water. On the upstroke the valve D5 is closed, the valve E lifted to its upper seat, and the water is forced from the lower Vside of the chamber C into the pipe F, while the pipe B is iilling ready for the downstroke. Thus it will be seen that the pump is double-acting. The pump also acts asa self-bleeder, which is particularly desirable, for if water remain in the pipe F in summerits liable to become tepid and in winter to be frozen. This selfbleeding action of the pump is as follows: Stop the pu mp-handle at the end ofthe downstroke. The inertia of the water above the valve D6, supplemented by the weight of the valve and the suction created by the movingcolumn of water in E, which does not instantly come to a standstill, forces the valve D(i open, and the Water, soon beginning to run back from F, passes upward in the chamber C at such an angle as to keep one side of the valve D6 open, when the water in F will soon iind the level of the reservoir.

IOO

We are aware that a patent, No. 372,953, has been issued to Beeson for a submerged double: acting force-pump somewhat similar to mine; but his pump is not a self-bleeder, and in many important details, notably the construction of the valves, Ais essentially different from the .pump herein described and claimed.

It Will be seen that all the parts of the herein-described pump may be readily made or repaired at any gas-fitters Shop, While the facility with which the leather packing may be removed and adjusted makes the only repairs ordinarily required simple in the cxtreme.

Having thus described our invention, what valve E, having two metal disks e2, connected together by the bolt e4 and inclosing the disk e', of rubber or leather, the lat-ter disk having a greater diameter than the said metal disks, with the guide-rods e3, substantially as described.

2. In a double-acting double-piston submerged force-pump of the character described, a valveE, having two met-al disks e2, smaller i-n diameter than the interior of the cylinders for the pistons, inclosing a leather disk larger in diameter than the interior of the said cylinders, with a bolt for holding said disks together, and a guide rod entering said pistoncylinders, as and for the purposes described.

In testimony whereot` We affix oursignatures in presence of two witnesses.

CHARLES -oLEMoNs I JosEPH o. MYERS.

Witnesses:

WILBUE M. CARTER, H. C. HILL. 

